/**
 * 渲染mp4
 */
export default function (buffer, target) {
	const mp4 = document.createElement('video');
	mp4.width = 840;
	mp4.height = 480;
	mp4.controls = true;
	const source = document.createElement('source');
	source.src = URL.createObjectURL(new Blob([buffer]));
	mp4.appendChild(source);
	target.appendChild(mp4)
}
